Slide fastened article



April 30, 1940. c. B. MURPHY SLIDE F'ASTENE'D-ARTIGLE Filed March 1'7,1938 INVENTOR. CharlesB Mur ATTOIENEYSQ Patented Apr. 30, 1940 UNITEDSTATES SLIDE FASTENED ARTICLE Charles B. Murphy, Meadville, Pa assignorto Talon, Inc., a corporation of Pennsylvania Application March 17,

Claims.

My invention relates to slide fastened articles and more particularly toarticles wherein the material. bordering .ithe opening extends over thefastener to conceal it.

In several articles where it has been attempted to use slide fasteners,particularly articles of clothing which encircle a member of the body,and are under more or less side tension, a problem has appeared inattempting to have the edges of material bordering the slit cover theslide fastener. The side pull 'on thematerial will tend to cause thecovering edges to'flare upwardly and expose the fastenerelements. Thisis especially true in such articles as spats, where the slit ficlin arather sharply curved portion of the ar- The primary object of myinvention is to solve the above problem in a simple and effectivemanner. I have discovered that if there are two rows of stitchesattaching each side of the slide fastener to the" adjacent material andthe material of the article iscrowded, between the rows of stitches tocause it to bow upwardly, :then all of the stress in actual use willcome on the rows of stitches most remote from the free edges of thematerial, and the free edges will tend to hug closely against thefastenerelements rather than flare upwardly to expose the fastenerelements.

In the accompanying drawing I have shown for purposes of illustrationone embodiment which my invention may assume in practice. In thedrawing;

Fig. 1 shows a spat embodying my invention;

Fig. 2 is a detailed cross-section through the spat on line 2-2 of Fig.l with the stringers under tension; and

Fig. 3 is. a corresponding cross-sectional view showing what happens inthe conventional construction. The spat designated 4 is fitted over ashoe 5.. It may be shown with a decorative false row of buttons t, andthe opening is in the form of a slit I in the center of the instepportion. A slide fastener. generally designated 8 is applied underneaththe flaps. v

.The fastener stringers or tapes 9', I. carrying interlocking elements Hon their adjacent edges are secured to the respective sides of theopening or slit I by a plurality of rows of securing means preferably bylines of stitching l2 and Il. The lines of stitching on either sidesofthe opening are spaced apart a suitable distance in parallelrelationship to theedges of the opening. The inner lines of stitching itare spaced inwardly or the material a distance from the edge of the1938, Serial No. 196,42!

opening on either side to provide fastener element covering flaps formedby the free edges l4 and --I5, respectively, which extend into meetingrelation to cover the fastener elements. As shown in Fig. 2, the innerlines of stitching i2 and outer lines of stitching l3 join the fastenerstringers to the article but in such a manner that the width of the tapebetween these rows or lines of stitching is less than the width of theflexible material between the same rows or lines of stitching. Bypositioning the rows or lines of stitching in this manner all lateralforces acting upon the sides of the fastener stringers will be taken upentirely by the inner lines or rows of stitching l2 and not by the outerlines or rows of stitching l3. Under this condition the stitches l2assume an angular position with relation to their normal position whilethe stitches 13 remain in their normal position. Because any lateralforce is thus prevented from pullingon the lines of stitching l3,-alltendency for the fastener element covering flaps to flare up iseliminated. The entire widthof the article material between the two rowsof stitchingis bowed upwardly as indicated at I8. It will be understoodthat the material of the spat or similar garment l6 will ordinarily berelatively thick and soft. I When downward pressure comes upon the flapsl4, l5 they will bear against the corners of the fastener elements whichwillimpress themselves .to some extent in the soft material and allowthe edges-of these flaps to curve downwardly against the fastenerelements on account of the downward pressure upon them.

This will be true regardless of whether the fastener is under strain ornot because the fullness or curvature in the portions It will preventany tension being transmitted to the row of sitchi'ng It, thus causingthe normal compression of the fabric in these portions to continue toact and hold the flaps l4 l5 inplace.

struction as shown in Fig. 3, the width of the tape and the width of thematerial between the lines of stitching l1 and I8 is equal andconsequently any lateral force acting on the line of stitching II willbe equally transmitted to the line of stitching ll. Because of thiscondition,

both lines of stitching will assume an angular position with relation totheir normal position and will tend to displace the cover flaps l9 andII, respectively, and cause them to flare up and expose the fastenerelements. It 'will thus be seen in contra-distinction to the conditiondescribed in Fig. 2 that when the construction of Fig. 3 is placed undertension the edges I. II

. 40 By way of contrast in the conventional conwill tend to be turnedupwardly so that there will not be any pressure of the flaps against thecorners of the fastener elements. This is due to the fact that the uppersurface of the soft material will shift sideways more than the lowersurface-so that the flaps tend to curve in the opposite direction fromthat shown in Fig. 2.

While I have shown and described in this application, oneembodimentwhich this invention may assume in practice, it will beunderstood that this embodiment is merely for'the purposes ofillustration and description and that various other forms may be devisedwithin the scope of my invention as set forth in the appended claims.

What I claim as my invention is: 1. An article of the class describedincluding a portion of flexible material, a slit in said flexiblematerial, and a slide fastener for closing the slit,,

said slide fastener being positioned under the edges of the materialbordering the slit, and consisting of a pair of tapes with interlockingelements on their adjacent edges, and a plurality of rowsof securingmeans for attaching each of the tapes to the flexible material of thearticle adjacent thereto, the width of the tape between said rows beingless than the width of the flexible material.

2. An article of the class described including a portion of flexiblematerial, a slit in said flexible material and a slide fastener forclosing the slit, said slide fastener consisting of a pair of tapes withinterlocking elements on their adjacent edges, said fastener tapes beingpositioned under the edges of the material bordering the slit, and aplurality of rows of stitching for attaching each of the tapes to theflexible material of the article, the width of the tapes between saidrows being less than the width of the flexible material and the freeedges of the flexible material extending beyond the rows of stitchinginto substantially meeting relationship to cover the interlockingelements.

3. An article of the class described including a portion of flexiblematerial, a slit in said flexible material, and a'slide fastener forclosing the slit,

said slide fastener consisting of a of tapes ,with interlocking elementson their adjacent edges, each fastener tape being secured under theedges of the material bordering the slit by two rows of stitches, onerow being positioned inwardly from the edge of the slit and parallelthereto, the second row being positioned adjacent the inner edge of eachfastenertape, the free edgesof the flexible material extending outwardlyon each side of theslit to cover-the fastener elements, and the width ofthe tape between the rows' of stitching on each side of the slit beingless than the width of the article material between the stitches.

4. The combination with a slide fastener having a pair of stringers offlexible material and rows of interlocking elements attached to theiradjacent edges, of strips of material overlying the slide fastener andmeeting in the longitudithe article, a slide fastener for closing theslit comprising two tapes with rows of' interlocking elements on theiradjacent edges, the material of the article which borders the slitserving to cover, and conceal the entire fastener and two rows ofstitching for securing each'tape of the slide fastener to the adjacentcovering material, the width of the covering material between thestitches being greater than the width of the tape whereby the coveringmaterial is not bowed upwardly when under tension thus not lifting thefree extending edges of the covering material away from the fastenerelements.

